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Finding the Fourth Proportional to 12,281,608.80, 18,422,413.20 and 10,899,862.20

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Solution

The fourth proportional to 12,281,608.80, 18,422,413.20 and 10,899,862.20 is: 16,349,793.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,281,608.80 : 18,422,413.20 = 10,899,862.20 : x
  2. Step 2: Convert to fraction form
    12,281,608.80/18,422,413.20 = 10,899,862.20/x
  3. Step 3: Cross multiply
    12,281,608.80x = 18,422,413.20 × 10,899,862.20
  4. Step 4: Simplify right side
    12,281,608.80x = 200,801,765,271,461.03
  5. Step 5: Solve for x
    x = 200,801,765,271,461.03/12,281,608.80
  6. Step 6: Final answer
    x = 16,349,793.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.